even players who aren’t assigned one of the inherently progenitorial roles (hero of space, ectobiologist - a time player who, though being assigned the purpose of initiating the Scratch, is being ordered to literally “become the parent”) seem to be encouraged by the game to grow into a parental figure - which, duh, makes sense, because the act of playing Sburb and creating a universe are inherently progenitorial.
but in this vein I think Rose rejecting the quest assigned to her by the game (becoming a creator of life by playing the genetic codes in LOLAR’s rain and filling the planet’s oceans - which, thanks to Ceuts, are barren, connecting with Roxy’s own infertility?) is intrinsically tied to her rejection of motherhood. her allegiance to the Horrorterrors who oppose creation outright are probably a clearer example of this.